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Commit 3d7678e2 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman
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usb: mtu3: avoid sleep in atomic context when enter test mode 



Use readl_poll_timeout_atomic() instead of readl_poll_timeout()
in atomic context

Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent fbe9db75

drivers/usb/mtu3/mtu3_gadget_ep0.c

+1 −1
Original line number Diff line number Diff line
@@ -299,7 +299,7 @@ static int handle_test_mode(struct mtu3 *mtu, struct usb_ctrlrequest *setup) 
	mtu3_writel(mbase, U3D_EP0CSR, value | EP0_SETUPPKTRDY | EP0_DATAEND);



	/* wait for ACK status sent by host */

	readl_poll_timeout(mbase + U3D_EP0CSR, value,

	readl_poll_timeout_atomic(mbase + U3D_EP0CSR, value,

			!(value & EP0_DATAEND), 100, 5000);



	mtu3_writel(mbase, U3D_USB2_TEST_MODE, mtu->test_mode_nr);